Daikin BRC7E61W Service Manual download pdf (Page 72)

SiENBE34-703 Outline of Control (Indoor Unit)

Function 61

Heating When heating, the hot air rises to the top of the room, resulting in the temperature being lower

near the floor where the occupants are. When controlling by body thermostat sensor only, the

unit may therefore be turned off by the thermostat before the lower part of the room reaches the

preset temperature. The temperature can be controlled so the lower part of the room where the

occupants are doesn’t become cold by widening the range in which thermostat sensor in remote

control can be used so that suction temperature is higher than the preset temperature.

! Ex: When heating

Assuming the preset temperature in the figure above is 24°C, and the suction

temperature has changed from 18°C to 28°C (A → D):

(This example also assumes there are several other air conditioners, the VRV system is off, and

that temperature changes even when the thermostat sensor is off.)

Body thermostat sensor is used for temperatures from 18°C to 25°C (A → C).

remote control thermostat sensor is used for temperatures from 25°C to 28°C (C → D).

And, assuming suction temperature has changed from 28°C to 18°C (D → A):

remote control thermostat sensor is used for temperatures from 28°C to 23°C (D → B).

Body thermostat sensor is used for temperatures from 23°C to 18°C (B → A).

12 14 16 18

ABCD

20 22 24 26 28 30 32 34

TH1 = Ts + 1 ≤ 31°C

TH1 = Ts – 1

TH1 = Ts + 10 ≤ 31°C

TH1 = Ts + 12 ≤ 33°C

Differential

Suction temperature (TH1)

Range in which body

thermostat sensor

can be used

Range in which thermostat sensor

in remote control can be used

Preset Temperature

(Ts)

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 265 266

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Daikin BRC7E61W Service Manual Page 72